Question

Write the balanced chemical equations for the following reactions.
(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water
(b) Zinc + Silver nitrate → Zinc nitrate + Silver
(c) Aluminium + Copper chloride → Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride


NCERT Class 10th Science Chapter 1 Chemical Reactions and Equations

Answer 1

(a) Ca(OH)2 + CO2 → CaCO3 + H2O

(b) Zn + 2AgNO3 → Zn(NO3)2 + 2Ag

(c) 2Al + 3CuCl2 → 2AlCl3 + 3Cu

(d) BaCl2 + K2SO4 → BaSO4 + 2KCl

Answer 2

A balanced equation is an equation for a chemical reaction where the number of atoms for every element in the reaction and the total charge is the same for both the reactants and the products.

The balanced chemical equations for the given reactions can be written as follows:

1. $Ca(OH)_{2} +CO_{2}$ → $CaCO_{3} +H_{2} O$
2. $Zn+2AgNO_{3}$ → $Zn(NO_{3} )_{2} +2Ag$
3. $2Al+3CuCl_{2}$ → $2AlCl_{3} +3Cu$
4. $BaCl_{2} +K_{2} SO_{4}$ → $BaSO_{4} +2KCl$

#SPJ6